IVAR EQUIMETER module is a system for the direct heat metering in central heating plants. Compact and functional, it is equipped with zone valve suitable to electrothermal actuator controlled by thermostat, balancing valves, shut-off valves and protection filter upstream the heat meter. The peculiar feature of EQUIMETER is the possibility to balance water flow both in supply and in by-pass mode by reading the flow rate directly on the heat meter display: this makes the start-up operations extremely easy. The heat metering block is proposed in two versions allowing the installation of two sizes of heat metering devices (3/4'' connections, 110 mm port-to-port distance, or 1'' connections, 130 mm port-to-port distance). Both versions are available with or without sanitary water lines, to meter domestic hot water, domestic cold water and/or rainwater consumption. A version with anti-scalding thermostatic mixer is also available. EQUIMETER is supplied either on simple frame or housed in recessed box. The module can be also purchased in two parts, as the sum of an installation template and the functional hydraulic module to be installed after masonry and hydraulic connection.